Question

If n(A) = 7, n(B) = 9 and n(A∪B) = 14 then n(A∩B) =

Answer 1

Answer:

2

Step-by-step explanation:

n(A U B ) = n(A)+n(B)- n(A intersection B)

14 = 7 + 9 - n(A intersection B )

n(A intersection B) = 16 - 14 = 2